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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Coherent thermal antenna using a photonic crystal slab
M Laroche1, R Carminati, J-J Greffet
1Laboratoire d'Energétique Moléculaire et Macroscopique, Combustion, Ecole Centrale Paris, Centre National de la Recherche Scientifique, Grande Voie des Vignes, 92295 Châtenay-Malabry Cedex, France.
Physical Review Letters
|April 12, 2006
Summary
A photonic crystal film can emit coherent thermal radiation by utilizing leaky waves. The emission
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Coherent thermal radiation is crucial for advanced optical applications.
- Photonic crystals offer unique light-matter interaction properties.
Purpose of the Study:
- To demonstrate coherent thermal radiation emission from a photonic crystal film.
- To investigate the role of leaky waves in this emission process.
Main Methods:
- Fabrication of a photonic crystal film.
- Characterization of thermal radiation emission.
- Analysis of leaky wave phenomena at the interface.
Main Results:
- Photonic crystal films can emit coherent thermal radiation.
- Leaky waves at the air-photonic crystal interface are key to emission.
- Emission frequency and direction are tunable via lattice parameters.
Conclusions:
- Leaky waves enable coherent thermal emission in photonic crystals.
- This work provides a pathway for designing coherent infrared antennas.
